<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>九九乘法表</title>
    <style>
         *{padding: 0;margin: 0;}
        table{
            height: 333px;width: 500px;
            background: url(10.jpg) no-repeat;
            background-size: cover;
            box-sizing: border-box;
            float: left;
            margin: 20px;
        }
        .bordered tr,td{ 
            padding:5px;
            text-align:center;
            background-color: #FEFEFE; 
            opacity:0.8;}
            </style>
</head>
<body>
<table class="bordered">
    <?php
    for($i=1; $i<10; $i++){
        echo "<tr>";
        for($j=1;$j<=$i; $j++){
            echo "<td>{$j}×{$i}=".$j*$i."</td>";
        }
        echo "</tr>";
    }
    ?>
</table>
<table class="bordered">
    <?php
    for($i=1; $i<10; $i++){
        echo "<tr>";
        for($j=1;$j<=$i; $j++){
            echo "<td>{$j}×{$i}=".$j*$i."</td>";
        }
        echo "</tr>";
    }
    ?>
</table>   
</body>
</html>